David Krumholtz began acting at a young age, landing his first major role in Life with Mikey (1993) alongside Michael J. Fox. He quickly became a familiar face in Hollywood, appearing in films such as Addams Family Values (1993), The Santa Clause (1994), and 10 Things I Hate About You (1999). His versatility allowed him to move seamlessly between comedy, drama, and family films.
His most notable television role came as Charlie Eppes, a mathematical genius, in CBS’s Numb3rs (2005–2010). He later appeared in HBO’s The Deuce (2017–2019) and films like Hail, Caesar! (2016) and Oppenheimer (2023), where he portrayed physicist Isidor Isaac Rabi. Krumholtz has built a career defined by consistency, depth, and a strong presence across both film and television.